HT16K33 RAM Mapping 16x8 LED Controller Driver Module I2C 16 Segment 8 Common LED Dot Matrix Module with Keyscan for Arduino|Motor Driver| - AliExpress
Microchip MCP79410-I/MS, Real Time Clock (RTC), 64B RAM Serial-I2C, 8-Pin MSOP - Listec Holdings Pvt Ltd
Adafruit I2C Non-Volatile Ferroelectric Ram Breakout - 256Kbit / 32KByte for 3V or 5V Power and Logic or FRAM Storage to DIY Project 1895: Amazon.co.uk: Computers & Accessories
Flash Memory IC Chip DS1338Z-33+ --- I2C RTC with 56-Byte NV RAM
FM 24C64B-G: 64-Kbit (8K× 8) Serial (I2C) F-RAM, SO8 at reichelt elektronik
STMicroelectronics M41T11MH6F, Real Time Clock (RTC), 64B RAM Serial-I2C, 28-Pin SOH - Listec Holdings Pvt Ltd
Overview | Adafruit I2C FRAM Breakout | Adafruit Learning System